The 3000 Series has become synonymous with the ultimate in sound quality; a level of performance reserved for only the finest audio systems in the world. But traditional thought says that the more features and functions added to a preamplifier, the more of an affect they have on sound, right?
In the 3010 Boulder’s engineers have proven traditional wisdom wrong and achieved something peerless. The 3010 is easily the greatest performing preamplifier in the history of the company. It’s also the most flexible preamp we’ve ever designed. Which quite possibly makes it the finest preamplifier available.

The 2110 is Boulder’s most iconic offering. It is instantly recognizable, our highest performing, continuously-produced preamplifier. Inside there are countless technological advancements and precision electronic design. Outside, the modern and luxurious look is highlighted by a wrap-around mirror-glass display window and hand-polished stainless steel controls. Extensive connection and programming features make the 2110 the obvious choice as the heart of any world-class audio system.

What is it that makes the 1110 Stereo preamplifier so special? It is something rare, an overachiever, a unique combination of reference-level performance and compact, convenient design. It is at once familiar in size and shape and yet completely new in aesthetic design detail. It is the perfect mix of traditional function and cutting-edge technology. Perhaps what makes it so special is that it takes such amazing sight, sound, use, and feel and packs them all into a single chassis.
It is, after all, a Boulder, and every Boulder is special.

There is no substitute for experience. Boulder’s proud history includes some of the finest preamplifiers ever made: the 2110, 2010, 1012 and 1010. Each has earned multiple awards, praise and accolades and are examples of the very best available. You can now add the 810 Preamplifier to that list.

The Progression Preamplifier adds new features previously not included in a D’Agostino preamplifier. Most noticeably, the Progression Preamplifier features an optional digital module. The digital module adds coaxial, Toslink, and USB capability to the analog base model.

The Illusion preamplifier extends the Krell tradition of separating the power supply from the audio circuitry in our flagship preamplifiers. Sharing the new Class A iBias power amplifier aesthetic and featuring Krell CAST technology, the Illusion preamplifier is the ideal match for the new Solo 375 and Solo 575 power amplifiers.

The Illusion II is the perfect centerpiece for a world class digital and analog audio system. Added to the normal selection of balanced and single- ended inputs are five digital inputs. The digital module features AES/EBU, coaxial, and optical digital inputs for use with streaming devices or other digital sources.

This large, dual-chassis preamplifier is built in true dual-mono arrangement. Each channel has its own power supply board with over 100,000uf of capacitance for unfettered transient response. Noise levels have been dropped from the already low-noise XP30. Refined circuit design and layout, new gain-stages with auto-bias and DC compensation all combine for optimal performance. But it all comes down to sound; once you listen to the Xs preamplifier, there is no going back.

The XP-30 is a three-piece modular preamplifier consisting of one control/power supply chassis and two additional gain chassis each containing analog signals of a single channel. The XP-30 generates less noise, crosstalk and distortion while delivering greater dynamic range, gain, output voltage and output current. But it is the sound, not the technical excellence, that truly makes this a breakthrough instrument.

The new design uses double shielded low noise toroidal transformers in external supply connected via aviation grade circular connectors using silver over oxygen free copper. The power supply is dual mono with two transformers with lower radiated and mechanical noise. Noise is the most prominent part of THD+N at low levels, so by lowering noise we get better resolution and dynamics.

With a separate power supply electrically isolating delicate analogue signals in the preamplifier, this cosmetically-matched dual-chassis reference line-stage preamplifier offers significant gains in detail retrieval over the XP-10 without loss of musical soul. How does this translate into the sonic fidelity you really care about? Instruments and voice are presented in a more refined soundstage, and with better spectral balance. Fine nuances and details, which frequently go un-noticed, now become beautifully apparent -- even in loud and highly complex musical passages.

The new XP-12 starts with a new power supply. It uses an efficient toroidal design with both an electrostatic and Mu metal shield along with vacuum impregnating and epoxy fill. This gives us a very quiet transformer both electrically and mechanically.

Designed with considerable technical improvements over past preamplifiers, the XP-10 showers the listener with a more dynamic sound, cleaner and more accurately delineated bass lines and a greatly refined spatial envelope. Though the current entry-level line-stage preamplifier, this descendant of the highly acclaimed and successful Pass Laboratory's X series preamplifiers sounds and measures significantly better than its predecessors.